Install Cinnamon into Ubuntu

This post on Cinnamon is obsolete as of April 2014.  Cinnemon 2.2 has been released and installation will be standardized.

More information here:
http://www.webupd8.org/2014/04/cinnamon-22-released-with-system.html

****** Information below obsolete as of April 2014, but included here for historical purposes.

Almost without exception when I am setting up a new Ubuntu desktop instance, I will install the Cinnamon to use instead of Unity.

After using Mint Linux with Cinnamon, really enjoyed the traditional layout offered by Cinnamon.

Installation into Ubuntu, or many other distributions is easy:
http://cinnamon.linuxmint.com/?page_id=61

Here are the commands for reference:

sudo add-apt-repository ppa:gwendal-lebihan-dev/cinnamon-stable
sudo apt-get update
sudo apt-get install cinnamon nemo  #nemo is the default file manager for Cinnamon

This does not get rid of Ubuntu Unity. If you wish to remove Unity, there are instructions to do that here:
http://askubuntu.com/questions/292394/how-to-completely-remove-unity-and-replace-it-with-cinnamon